| /******************************************************************************* |
| * Copyright (c) 2000, 2010 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.gef.examples.logicdesigner.edit; |
| |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.graphics.Font; |
| import org.eclipse.swt.graphics.FontData; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Text; |
| |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.jface.viewers.CellEditor; |
| import org.eclipse.jface.viewers.TextCellEditor; |
| import org.eclipse.ui.IActionBars; |
| import org.eclipse.ui.PlatformUI; |
| import org.eclipse.ui.actions.ActionFactory; |
| import org.eclipse.ui.part.CellEditorActionHandler; |
| |
| import org.eclipse.gef.GraphicalEditPart; |
| import org.eclipse.gef.editparts.ZoomListener; |
| import org.eclipse.gef.editparts.ZoomManager; |
| import org.eclipse.gef.tools.CellEditorLocator; |
| import org.eclipse.gef.tools.DirectEditManager; |
| |
| import org.eclipse.gef.examples.logicdesigner.figures.StickyNoteFigure; |
| |
| public class LogicLabelEditManager extends DirectEditManager { |
| |
| private IActionBars actionBars; |
| private CellEditorActionHandler actionHandler; |
| private IAction copy, cut, paste, undo, redo, find, selectAll, delete; |
| private double cachedZoom = -1.0; |
| private Font scaledFont; |
| private ZoomListener zoomListener = new ZoomListener() { |
| public void zoomChanged(double newZoom) { |
| updateScaledFont(newZoom); |
| } |
| }; |
| |
| public LogicLabelEditManager(GraphicalEditPart source, |
| CellEditorLocator locator) { |
| super(source, null, locator); |
| } |
| |
| /** |
| * @see org.eclipse.gef.tools.DirectEditManager#bringDown() |
| */ |
| protected void bringDown() { |
| ZoomManager zoomMgr = (ZoomManager) getEditPart().getViewer() |
| .getProperty(ZoomManager.class.toString()); |
| if (zoomMgr != null) |
| zoomMgr.removeZoomListener(zoomListener); |
| |
| if (actionHandler != null) { |
| actionHandler.dispose(); |
| actionHandler = null; |
| } |
| if (actionBars != null) { |
| restoreSavedActions(actionBars); |
| actionBars.updateActionBars(); |
| actionBars = null; |
| } |
| |
| super.bringDown(); |
| // dispose any scaled fonts that might have been created |
| disposeScaledFont(); |
| } |
| |
| protected CellEditor createCellEditorOn(Composite composite) { |
| return new TextCellEditor(composite, SWT.MULTI | SWT.WRAP); |
| } |
| |
| private void disposeScaledFont() { |
| if (scaledFont != null) { |
| scaledFont.dispose(); |
| scaledFont = null; |
| } |
| } |
| |
| protected void initCellEditor() { |
| // update text |
| StickyNoteFigure stickyNote = (StickyNoteFigure) getEditPart() |
| .getFigure(); |
| getCellEditor().setValue(stickyNote.getText()); |
| // update font |
| ZoomManager zoomMgr = (ZoomManager) getEditPart().getViewer() |
| .getProperty(ZoomManager.class.toString()); |
| if (zoomMgr != null) { |
| // this will force the font to be set |
| cachedZoom = -1.0; |
| updateScaledFont(zoomMgr.getZoom()); |
| zoomMgr.addZoomListener(zoomListener); |
| } else |
| getCellEditor().getControl().setFont(stickyNote.getFont()); |
| |
| // Hook the cell editor's copy/paste actions to the actionBars so that |
| // they can |
| // be invoked via keyboard shortcuts. |
| actionBars = PlatformUI.getWorkbench().getActiveWorkbenchWindow() |
| .getActivePage().getActiveEditor().getEditorSite() |
| .getActionBars(); |
| saveCurrentActions(actionBars); |
| actionHandler = new CellEditorActionHandler(actionBars); |
| actionHandler.addCellEditor(getCellEditor()); |
| actionBars.updateActionBars(); |
| } |
| |
| private void restoreSavedActions(IActionBars actionBars) { |
| actionBars.setGlobalActionHandler(ActionFactory.COPY.getId(), copy); |
| actionBars.setGlobalActionHandler(ActionFactory.PASTE.getId(), paste); |
| actionBars.setGlobalActionHandler(ActionFactory.DELETE.getId(), delete); |
| actionBars.setGlobalActionHandler(ActionFactory.SELECT_ALL.getId(), |
| selectAll); |
| actionBars.setGlobalActionHandler(ActionFactory.CUT.getId(), cut); |
| actionBars.setGlobalActionHandler(ActionFactory.FIND.getId(), find); |
| actionBars.setGlobalActionHandler(ActionFactory.UNDO.getId(), undo); |
| actionBars.setGlobalActionHandler(ActionFactory.REDO.getId(), redo); |
| } |
| |
| private void saveCurrentActions(IActionBars actionBars) { |
| copy = actionBars.getGlobalActionHandler(ActionFactory.COPY.getId()); |
| paste = actionBars.getGlobalActionHandler(ActionFactory.PASTE.getId()); |
| delete = actionBars |
| .getGlobalActionHandler(ActionFactory.DELETE.getId()); |
| selectAll = actionBars.getGlobalActionHandler(ActionFactory.SELECT_ALL |
| .getId()); |
| cut = actionBars.getGlobalActionHandler(ActionFactory.CUT.getId()); |
| find = actionBars.getGlobalActionHandler(ActionFactory.FIND.getId()); |
| undo = actionBars.getGlobalActionHandler(ActionFactory.UNDO.getId()); |
| redo = actionBars.getGlobalActionHandler(ActionFactory.REDO.getId()); |
| } |
| |
| private void updateScaledFont(double zoom) { |
| if (cachedZoom == zoom) |
| return; |
| |
| Text text = (Text) getCellEditor().getControl(); |
| Font font = getEditPart().getFigure().getFont(); |
| |
| disposeScaledFont(); |
| cachedZoom = zoom; |
| if (zoom == 1.0) |
| text.setFont(font); |
| else { |
| FontData fd = font.getFontData()[0]; |
| fd.setHeight((int) (fd.getHeight() * zoom)); |
| text.setFont(scaledFont = new Font(null, fd)); |
| } |
| } |
| |
| } |